| TJB Films Productions Ltd | Information & communication | 2020 |
| TJR Waste Management Limited | Water & waste | 2024 |
| TJW Construction (S E) Limited | Administrative & support | 2016 |
| TM Offshore Ltd | Other services | 2019 |
| TMC Commercial Ltd | Professional & scientific | 2016 |
| TMH Build Ltd | Construction | 2025 |
| TNS Local Limited | Wholesale & retail | 2012 |
| Todor Transport Ltd | Transport & logistics | 2024 |
| TOM Thumb Margate Limited | Other services | 2017 |
| TOM Thumb Theatre Community Interest Company | Arts & recreation | 2025 |
| TOM Ward Coaching Ltd | Professional & scientific | 2026 |
| Tomes Homes Limited | Real estate | 2015 |
| Tomes Homes Maintenance Limited | Construction | 2026 |
| Tommy James Limited | Construction | 2002 |
| Tomouri Ltd | Manufacturing | 2026 |
| Toncar Leisure Limited | Hospitality | 2015 |
| Tonetic CIC | Information & communication | 2024 |
| Tony Ides Ramsgate Railway Civil Solutions Ltd | Professional & scientific | 2020 |
| Tony Luxe Ltd | Wholesale & retail | 2025 |
| Top Branch Tree Services Ltd | Agriculture & fishing | 2024 |
| Top Dog Tutoring Ltd | Education | 2018 |
| Tophamstock Ltd | Hospitality | 2025 |
| Tosun Properties Ltd | Real estate | 2017 |
| Total Access Research and Design Limited | Professional & scientific | 2010 |
| Total Accountancy Training Ltd | Education | 2014 |
| Total Marketing Network Limited | Professional & scientific | 2002 |
| Totalglaze Windows Limited | Construction | 1985 |
| TPR Rail Limited | Construction | 2025 |
| TR Arisan Ltd | Real estate | 2022 |
| TR Kent Stores Ltd | Wholesale & retail | 2025 |
| Trade Container Services Limited | Administrative & support | 2016 |
| Trade Projects Limited | Wholesale & retail | 2026 |
| Traders Voice Limited | Wholesale & retail | 2022 |
| Trail Blazers Education CIC | Education | 2022 |
| Trans Club Margate CIC | Health & social care | 2026 |
| Transform Conversions Limited | Other services | 2016 |
| Translate Productions Ltd | Information & communication | 2026 |
| Trantor Estates Limited | Real estate | 2018 |
| Travellerartperformance Ltd | Arts & recreation | 2019 |
| Treefiddy Ltd | Information & communication | 2025 |
| Triangular Elephant Limited | Manufacturing | 2013 |
| Tribos World Movement for Reconciliation | Education | 2000 |
| Tridecagon Investments Limited | Real estate | 2019 |
| Trident Products Ltd | Wholesale & retail | 2011 |
| Tritone Design Ltd | Professional & scientific | 2021 |
| Truck Monkey Ltd | Transport & logistics | 2018 |
| Truehaven Property Group Ltd | Hospitality | 2026 |
| TSD Media Ltd. | Information & communication | 2025 |
| TSE Services Ltd | Professional & scientific | 2019 |
| TSW Assets Limited | Financial services | 2020 |
| Turkish Food Ltd | Hospitality | 2018 |
| Turner Contemporary | Arts & recreation | 2008 |
| Turner Contemporary Enterprises Limited | Wholesale & retail | 2010 |
| Turner Rooms Limited | Hospitality | 2017 |
| Turner View Holdings Ltd | Households | 2016 |
| Turnstone Mews Management Limited | Real estate | 2020 |
| Turpitt, Toots & Blake Estates Ltd | Real estate | 2020 |
| Tutum Security Ltd | Administrative & support | 2025 |
| TV One Limited | Manufacturing | 1985 |
| Tvndem Advisory Ltd | Professional & scientific | 2025 |
| Tvndem Group Ltd | Financial services | 2025 |
| Tvndem Online Ltd | Information & communication | 2025 |
| Tvndem Projects Ltd | Financial services | 2025 |
| TWENTY1 Contractors Ltd | Construction | 2022 |
| Twisted Time Machine Limited | Arts & recreation | 2019 |
| TWM Homes Limited | Real estate | 2018 |
| Two Scoops Communications Limited | Information & communication | 2024 |
| Tyche Contracting Limited | Health & social care | 2019 |
| Tydeman Investments Ltd | Arts & recreation | 2019 |
| Ugwu Constructions Ltd | Construction | 2022 |
| UK Computer Online Ltd | Wholesale & retail | 2019 |
| UK COMPUTER4U Ltd | Wholesale & retail | 2021 |
| UK Lupum Ltd | Wholesale & retail | 2022 |
| UK Plus Ltd | Information & communication | 2023 |
| UK Properties Development Ltd | Construction | 2022 |
| UK Trade Team Ltd | Construction | 2021 |
| Ultra Vision Glazing Limited | Construction | 2021 |
| Ultrasound Imaging Southeast Limited | Health & social care | 2020 |
| Umar NH Ltd | Wholesale & retail | 2021 |
| Uncanny Films Ltd | Information & communication | 2011 |
| Underline Creative Ltd | Professional & scientific | 2014 |
| Unifi App Limited | Information & communication | 2019 |
| Union Crescent Limited | Real estate | 2018 |
| Unique Plumbing & Heating Limited | Construction | 2009 |
| United Westbrook RTM Company Limited | Real estate | 2022 |
| Unity Solutions Ltd | Manufacturing | 2022 |
| UP Property Group Limited | Real estate | 2019 |
| Upper Dane Court Management Company Limited | Households | 1989 |
| Upton Swimming Pool Ltd | Arts & recreation | 2018 |
| Urban Cars Thanet Ltd | Transport & logistics | 2024 |
| Urban Properties Kent Limited | Real estate | 2025 |
| Urban-Care Ltd. | Health & social care | 2017 |
| US @ Fort Road Ltd | Hospitality | 2026 |
| UWE Ahrens Ltd | Information & communication | 2010 |
| V & K Property Expert Ltd | Households | 2020 |
| V M Superstore Ltd | Wholesale & retail | 2021 |
| Valden Construction Ltd | Construction | 2017 |
| Vangarda Build Limited | Construction | 2024 |
| Vanguard Properties U.K. Ltd | Real estate | 2023 |
| Vbc-Engineering Ltd | Professional & scientific | 2025 |